Trolley-wheel adjuster



R. C. McKlLIGET.

TROLLEY WHEEL ADJUSTER. APPLICATION man JULY 2.1920.

Patented Nov. 9, 1920.

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` TROLLEY-WHEEL amusrnn.

Speccaton of Letters Patent.

Patented Nov. 9, 1920.

Application filed July 2, 1920. Serial No; 393,690.l

To all @0.7mm t may concern: i

Be it known that l. Bronnen C. Molinioer, a citizen oli the llnited States, residing at New Orleans, in the parishoi 'lrleans and State of Louisiana, have invented certain new and useful improvements in rl`rolleyl/*heel Adjusters; and l do hereby declare the :following to be a lull, clear, and exact description of the invention, such as Will enable others skilled in the art to which it appertains to maire and use-the same.

The present invention relates to improve ments in trolley Wheels and mountings therefor, and has for' an object to provide a pivotally mounted trolley Wheel adapted to swing on the trolley poleso that it may 'ich lovr the curvature oi `the trolley Wire in rounding corners. n

Another obj ect oit the invention resides in providing a simple and inexpensive construction oitrolley Wheel and support Which will admit of the turning of the wheel axially on the pole. thus maintaining the groove in the Wheel at all times parallel with the trolleywvire.

it further object of the invention resides in providing an improved spring pressure for acting to normally hold the trolley Wheel in a position to engage a straight trolley Wire but adapted to permit of the swinging of the Wheel by the action of the Wire on the Wheel throughout curved portions of the Wire.

ln the accompanying drawings forming a part of this application, and in which simi lar reference symbols indicate correspond ing parts in the several views:

Figure l is a fragmentary view in side elevation of a trolley pole and Wheel with an improved support therefor constructed in accordance with the present invention.

Fig. 2 is an end vieiv of the same with parts shown in section; and

Fig. 3 is a sectional View taken on the line 3 3 in Fig. l.

Referring more particularly to the drawings, .l designates the usual trolley pole connected in any suitable manner to the top of the car on which it is used, and 2 represents the trolley Wire. A conventional Wheel 3 is employed having a` groove in which to re ceive the Wire 2, as shown to advantage in Fig. 2. The wheel 3 is mounted on a Cotter pin Ll, or other form of support. which passes through the harp or fork 5. The lower portion of the harp 5 is carried on a spindle 6 which lits Within a bearing box or sleeve 7. lhe sleeve .7 `is exteriorly screw threaded at its lower end to receive the interior threads of a coupling collar 8, Which is also threaded on the upper end of the trolley pole l. rlhe in er end of the spindle 6 is reduced as indicated at 9, and is'screiv threaded to receive the nut l0 by which a Washer il may be clamped against the lower end of the sleeve 7. i

The arrangement is such that the spindle 6 carrying the harp 5 and 'the trolley Wheel B, will be permitted to freely rotate about an'airis which is an extension ofl the axis of the trolley pole l. rl"he coupling piece 8 and its adjacent parts also permit of the removability ol the and allow or" brolren parts.V

Thebearing boi; or sleeve T is provided at its upper enclavith an arm ll projecting downwardly and acting to support a lug l2'. il pair of flat l and ls.- are secured by screivs l5 and 16 to the ends of the lug l2. The swings are bent toward each other at their free ends and they embrace sides or cheeks of the ia p` or forlr 5s in the manner indicated infllig. 3.

rllhe central portions of the flat springs 13 and le are spaced from the adjacent portions of the harp or fork. as clearly illustrated in Fig. 3, in order to permit oiI the swinging movement of the harp Without interference from these portions oi the spring. lWhen the harp moves in either directiom however, these portions are moved against t ie spring` so that the spring acts thereon, exerting a tendency to restore the harp to the normal position. The portions of the harp are cut away, as indicated at l?, so as not to interfere With the Wide swinging movement thereof.

A set screw 18 is threaded through the lug l2 and is adapted to take against-thc harp V5 in order to bind the harp in any position of adjustment, if desired.. I

lin use the trolley Wheel 3 rolls beneath the Wire 2 in the usual mannere with the ein ception that when curves are reached the Wheel 3 Will be permitted to turn by virtue oit the pivoting oi the iarp 5 on the spindle 6. ln this manner the Wheel 3 is allowed to turn with the Wire that its groove is con# stantly kept in a correct position `vith eference to the Wire and avoids jumping of the trolley Wheel :from the Wire, which is a prodevice from the trolley'pole the substitution of Worn or ilo lic source of annoyance at the present time. The fiat springs I3 and 14 .vill permit of this movement Without appreciable effort, and will quiclrly act to restore the Wheel to -its normal position once the curve is passed.

not be .apt to escape therefrom.

vIt is obvious that those slrilled'in the art may vary the details of construction and arrangements oi parts Without departing from the spirit of my invention, and therefore I j do not Wish to be limited to such features Y for acting on the harp to hold the Wheel in except as maybe required by the claims.

I claim: l. In combination With a trolley pole and a trolley Wheel, of a harp carrying the Wheel,

f a spindle projecting from the harp, a bearing box removablyv carried by the pole; and receiving such spindle, a vsupport carried by the bearing box, flat springs projecting from said support and engaging the sides of the harp, and means also carried by said support an adjusted position, substantially as de scribed.

2. In combination With a trolley pole and a trolley Wheel, of a harp carrying the Wheel, a spindle projecting from the harp, a bearing box removably carried by the pole for receiving such spindle, a support on such bearing box, flat springs extending from such support and being curved toward each other and engaging theside faces of the Y ported from the pole, and atspringscar- Y ried by a part of said means and being curved toward each other, said springs adapted to engage at their ends the sides of the harp but being spacedat their intermediate portions away from such sides, substantially as described.V y,

i. In combination With a trolley pole and a trolley Wheel, ci a harp carrying the Wheel, a spindle with Which the harp rotates, a bearing box for the spindle removably helden the pole, supporting meansextending irom the bearing box, flat springs on the supporting means curved toward'one another with their free ends in contactvivith the sides of the harp and theirv intermediate portions Y normally out ot contact theileyvith, and adjustable mea-ns carried by the supporting means'ior engaging the harp tov hold it in various positions, substantially as described.

RICHARD c MCxiLrenr. 

